‏الصيام : Hadeeth No:2501 'A'isha (Allaah be pleased with her) reported. In the pre-Islamic days fast was observed on the day of Ashura, but with the advent of Islam (its position was ascertained as that of a voluntary fast). Then he who wished to fast fasted, and he who liked to abandon it abandoned it....

‏الجنة وصفة نعيمها وأهلها‏ : Hadeeth No:6846 Ibn Abbas reported that he heard Allaah's Messenger (sallAllaahu alayhi wa sallam) deliver an address and he was saying that they would meet Allaah barefooted, naked and uncircumcised....